Method:1. To make the Meringue Topping, beat the egg whites with cream of tartar and salt till fluffy.2. Fold in the icing sugar and beat again till the mixture is smooth and forms stiff peaks.3. Add the artificial sweetener and vanilla essence.4. Beat until well mixed. Do not over beat. Keep aside.5. Mix the fruits with lemon juice and artificial sweetener. 6. Keep aside to chill.7. Spread half the meringue mixture on a greased rectangular foil sheet, placed on a tray.8. Add the chilled fruit mixture over half the meringue mixture.9. Spread the remaining meringue on top, ensuring that the fruits are well covered.10. Bake on the top shelf of the preheated oven at 225C for 4 to 5 minutes, till delicately coloured and crispy on top.11. Serve immediately while the meringue is warm.